CN218093268U

CN218093268U - Air filter

Info

Publication number: CN218093268U
Application number: CN202222334223.4U
Authority: CN
Inventors: 吴星辉; 刘建雄; 刘立明; 付龙; 杨玉龙
Original assignee: Zhejiang Xuanfu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Current assignee: Zhejiang Xuanfu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-20
Anticipated expiration: 2032-08-31

Abstract

The utility model provides an empty filter belongs to car technical field. It has solved how to reduce the problem to its maintenance cost when guaranteeing empty filter effect. The air filter comprises a shell and a filter element, wherein the shell comprises an inner supporting net and an outer supporting net which are annular and are mutually sleeved, the filter element comprises a plurality of filter screens, at least one filter screen is positioned between the inner supporting net and the outer supporting net and is clamped and fixed, and the rest of the filter screens are sequentially sleeved and fixed outside the outer supporting net. This empty filter reduces the maintenance cost to it when can effectively guaranteeing empty filter effect.

Description

Air filter

Technical Field

The utility model belongs to the technical field of the car, a empty filter is related to.

Background

Air filters, i.e. air cleaners, are mainly used in the fields of pneumatic machines, internal combustion machines and the like for filtering air sucked by equipment to prevent the equipment from sucking air with foreign particles during operation to increase the probability of abrasion and damage.

The empty filter among the prior art generally includes filter core and casing two parts, and wherein the filter core is main filter part, mainly forms by the combination of multilayer filter screen, undertakes gaseous filtration work, and the casing is the exterior structure who provides necessary protection for the filter core, and the filter core is generally installed in the casing with the mode that sets firmly to the structural integrity who fully guarantees the filter core avoids the foreign object to collide with and cause the filter core to damage.

However, the air filter belongs to a consumable, after the air filter is used for a long time, a large amount of dust and sundries can be attached to the outer surface of the filter element, and due to the existence of the shell, a user can not detach the filter element and then clean the filter element, and the conventional method is as follows: the air filter is directly replaced by a new filter after being integrally detached, and the old filter is directly discarded, so that the maintenance cost is high.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an empty filter, the utility model aims to solve the technical problem that: how to reduce the maintenance cost of the air filter while ensuring the filtering effect of the air filter.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an empty filter, includes casing and filter core, its characterized in that, the casing is including being annular and the interior support net and the outer support net that cup joint mutually, the filter core includes a plurality of filter screens, at least one the filter screen is located between interior support net and the outer support net and by tightly being fixed, all the other the filter screen cup joints in proper order and fixes outside the outer support net.

This empty filter includes casing and filter core, and the casing specifically includes interior support network and outer support network, and both are cyclic annular and connect through the mode that cup joints, and the filter core includes a plurality of filter screens, and a plurality of filter screens do respectively: the air filter comprises a plurality of filter screens I, a plurality of filter screens II and a plurality of filter screens III, wherein the filter screens I are made of metal materials, the filter screens II are made of sponge materials, the filter screens III are made of non-woven fabrics, the filter screens I are arranged between an inner support screen and an outer support screen and are clamped and fixed through the inner support screen and the outer support screen, the filter screens II and the filter screens III are sequentially sleeved outside the outer support screen, after the air filter is installed (when an engine is started to suck air inwards), outside air can sequentially pass through the filter screens II, the filter screens III and the filter screens together to enter the engine, in the process, the filter screens II filter gravels with larger sizes at first and buffer the entering air to ensure that the air flow rate tends to be smooth, meanwhile, the filter screens III further filter dust impurities with sizes larger than 80 micrometers, and filter dust impurities with sizes larger than 50 micrometers again, so that the cleanliness of the air entering the engine is higher, and the service life of the engine is ensured; in addition, after long-time use, when the filter effect of empty filter reduced, the user can pull down the filter by the intake pipe department of engine, then directly pull down filter screen two and filter screen three, the user can wash filter screen one, interior support net and outer support net through the clear water under this state, wash away the impurity on filter screen one earlier, cover new filter screen two and filter screen three on outer support net again after spin-drying or drying it, make empty filter can used repeatedly from this, guarantee that the maintenance cost of empty filter is lower.

In the above air filter, the housing further includes an upper end cover and a lower end cover, one end of the inner support net and one end of the outer support net are fixedly connected to the upper end cover, and the other end of the inner support net and the other end of the outer support net are fixedly connected to the lower end cover.

One end of the inner support net and one end of the outer support net are provided with an upper end cover, the other end of the inner support net and the other end of the outer support net are provided with a lower end cover, one ends of the inner support net and the outer support net are connected with the upper end cover in a bonding (or welding) mode through fastening glue, and the other ends of the inner support net and the outer support net are also connected with the lower end cover in a bonding (or welding) mode through the fastening glue, so that the two ends of the inner support net and the outer support net are ensured to be stable, and further, the mounting stability of a filter screen clamped between the inner support net and the outer support net is ensured.

In the above air filter, the casing further includes two elastic bands, one of the elastic bands can compress one ends of the plurality of filter screens sleeved and fixed outside the outer support screen against the outer wall of the upper end cover, and the other elastic band can compress the other ends of the plurality of filter screens sleeved and fixed outside the outer support screen against the outer wall of the lower end cover.

After a plurality of filter screen covers are established on the outer support net, the user can tighten the one end at these filter screens through an elastic band (can be the common rubber band among the prior art), make the one end of these filter screens compress tightly and fix on the outer wall of upper end cover, tighten the other end at these filter screens through another elastic band again simultaneously, make the other end compression of these filter screens fix on the outer wall of lower end cover, make the both ends that change some filter screens fixed from this, ensure that empty filter can not take place to drop at a plurality of filter screens of cover outside the outer support net in the use.

In the above air filter, the outer side wall of the upper end cover is recessed inward along the circumferential direction to form an upper limiting groove for limiting the elastic band.

The outer wall of the upper end cover is inwards sunken along the circumferential direction to form an upper limiting groove, when one of the elastic bands compresses the second filter screen and the third filter screen end on the outer wall of the upper end cover, the elastic band can be embedded into the upper limiting groove, and therefore firmness of the second filter screen and the third filter screen end is further guaranteed.

In the above air filter, the outer side wall of the lower end cap is recessed inward in the circumferential direction to form a lower limit groove for limiting the elastic band.

The outer wall of the lower end cover is inwards sunken along the circumferential direction to form a lower limiting groove, and when the other ends of the second filter screen and the third filter screen are tightly pressed on the outer wall of the lower end cover through the other elastic belt, the elastic belt can be embedded into the lower limiting groove, so that the firmness of the second filter screen and the third filter screen is further guaranteed.

In the above air filter, the outer side wall of the upper end cover is arched outward in the circumferential direction to form two upper reinforcing ribs, and the two upper reinforcing ribs are respectively located on two sides of the upper limiting groove.

The outer wall of the upper end cover is arched outwards along the circumferential direction to form two upper reinforcing ribs, the two upper reinforcing ribs are respectively positioned on two sides of the upper limiting groove, and the structural strength of the upper end cover is guaranteed to be higher through the arrangement of the upper reinforcing ribs.

In the above air filter, the outer side wall of the lower end cap is arched outward in the circumferential direction to form two lower reinforcing ribs, and the two lower reinforcing ribs are respectively located on two sides of the lower limiting groove.

The outer wall of the lower end cover is arched outwards along the circumferential direction to form two lower reinforcing ribs, the two lower reinforcing ribs are respectively positioned on two sides of the lower limiting groove, and the structural strength of the lower end cover is guaranteed to be higher through the arrangement of the lower reinforcing ribs.

In foretell empty filter, the casing still includes the connecting pipe, the connector is seted up at the lower end cover middle part, the connecting pipe joint is in the connector, just still overlap on the connecting pipe outer wall and be equipped with the clamp.

The connector is seted up in lower extreme cover middle part department, and the connector on connecting pipe (specifically constitute by rubber materials) one end and the lower extreme cover is connected through the mode of joint, and the other end cup joints with the intake pipe of engine, presss from both sides the engine intake pipe tightly through the material characteristic of self, then presss from both sides the tight connecting pipe clamp of fixing on the connecting pipe of engine through a clamp again to guarantee the stability of empty filter installation in the engine intake pipe.

Compared with the prior art, the air filter has the following advantages:

1. this empty filter is the multilayer through the filter screen setting with the filter core for each filter screen can cooperate and realize the multiple-layer filtering, guarantees the filter effect, avoids the filter core to block up too fast, simultaneously with a plurality of filter screen assembly in the filter core outside the outer support net of casing, makes these a little filter screens pull down alone and change, need not whole change filter from this, guarantees that the maintenance cost is lower.

Drawings

Fig. 1 is a schematic view of the filter structure.

Fig. 2 is a sectional view of the filter and a partially enlarged view thereof.

Fig. 3 is an exploded view of the filter.

In the figure, 1, a housing; 11. supporting the net internally; 12. an outer support screen; 13. an upper end cover; 131. an upper limiting groove; 132. arranging a reinforcing rib; 14. a lower end cover; 141. a lower limiting groove; 142. a lower reinforcing rib; 143. a connecting port; 15. an elastic band; 16. a connecting pipe; 161. clamping a hoop; 2. a filter element; 21. a first filter screen; 22. a second filter screen; 23. and (5) filtering by using a third filter screen.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the air filter includes a housing 1 and a filter element 2, the housing 1 includes an inner support net 11 and an outer support net 12 that are sleeved with each other, the filter element 2 includes a plurality of filter screens, specifically: the filter screen comprises a first filter screen 21, a second filter screen 22 and a third filter screen 23, wherein the first filter screen 21 is made of a metal material, the second filter screen 22 is made of a sponge material, the third filter screen 23 is made of a non-woven fabric material, the first filter screen 21 is clamped between the inner support screen 11 and the outer support screen 12, the shell 1 further comprises an upper end cover 13 and a lower end cover 14, the upper ends of the inner support screen 11 and the outer support screen 12 are fixedly bonded on the upper end cover 13 through fastening glue, and the lower ends of the inner support screen 11 and the outer support screen 12 are fixedly bonded on the lower end cover 14 through the fastening glue, so that the upper end cover 13, the lower end cover 14, the inner support screen 11 and the outer support screen 12 are structurally stable, and the first filter screen 21 clamped between the inner support screen 11 and the outer support screen 12 is stably installed.

As shown in fig. 2-3, the third filter screen 23 is sleeved outside the outer support screen 12, the second filter screen 22 is sleeved outside the third filter screen 23, the housing 1 further includes two elastic bands 15, one of the elastic bands 15 is fastened to one end of the second filter screen 22 and the third filter screen 23, and the other elastic band 15 is fastened to the other end of the second filter screen 22 and the third filter screen 23, so that one end of the second filter screen 22 and one end of the third filter screen 23 are pressed against the outer wall of the upper end cover 13, and the other end of the second filter screen 22 and the other end of the third filter screen 23 are pressed against the outer wall of the lower end cover 14; in addition, as shown in fig. 2, the outer wall of the upper end cover 13 is recessed inward along the circumferential direction to form an upper limiting groove 131, the outer wall of the lower end cover 14 is recessed inward along the circumferential direction to form a lower limiting groove 141, one of the elastic bands 15 is limited in the upper limiting groove 131, and the other elastic band 15 is limited in the lower limiting groove 141, so that the stability of the two elastic bands 15 is ensured, and the stability of the two ends of the first filter screen 21 and the second filter screen 22 is ensured.

In addition, as shown in fig. 2, two upper ribs 132 are formed on the outer wall of the upper end cap 13 and protrude outwards in the circumferential direction, the two upper ribs 132 are respectively located at two sides of the upper limiting groove 131, two lower ribs 142 are formed on the outer wall of the lower end cap 14 and protrude outwards in the circumferential direction, the two lower ribs 142 are respectively located at two sides of the lower limiting groove 141, and the structural strength of the upper end cap 13 and the lower end cap 14 is higher through the arrangement of the upper ribs 132 and the lower ribs 142.

As shown in fig. 1-3, the housing 1 further includes a connecting pipe 16 made of rubber, a connecting port 143 is disposed at a middle portion of the lower end cap 14, one end of the connecting pipe 16 is clamped to the connecting port 143 of the lower end cap 14, the other end of the connecting pipe is tightly sleeved on an intake pipe of the engine, and a clamp 161 is further disposed on the connecting pipe 16, so that a user can clamp the connecting pipe 16 through the clamp 161, thereby ensuring that the connecting pipe 16 is more stably connected to the intake pipe of the engine.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the housing 1, the inner support net 11, the outer support net 12, the upper end cap 13, the upper restriction groove 131, the upper reinforcement rib 132, the lower end cap 14, the lower restriction groove 141, the lower reinforcement rib 142, the connection port 143, the elastic band 15, the connection pipe 16, the band 161, the filter cartridge 2, the first filter screen 21, the second filter screen 22, the third filter screen 23, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Claims

1. The utility model provides an empty filter, includes casing (1) and filter core (2), its characterized in that, casing (1) is including being annular and the interior support net (11) and the outer support net (12) that cup joint mutually, filter core (2) include a plurality of filter screens, at least one the filter screen is located support net (11) and outer support net (12) between and tightly be pressed from both sides fixedly, all the other the filter screen cup joints in proper order and fixes outside support net (12).

2. The air filter according to claim 1, wherein the housing (1) further comprises an upper end cover (13) and a lower end cover (14), one end of the inner support net (11) and one end of the outer support net (12) are fixedly connected with the upper end cover (13), and the other end of the inner support net and the other end of the outer support net are fixedly connected with the lower end cover (14).

3. The air filter according to claim 2, wherein the housing (1) further comprises two elastic bands (15), one of the elastic bands (15) can press one ends of the filter screens sleeved and fixed outside the outer support net (12) against the outer wall of the upper end cover (13), and the other elastic band (15) can press the other ends of the filter screens sleeved and fixed outside the outer support net (12) against the outer wall of the lower end cover (14).

4. The air filter according to claim 2 or 3, wherein the outer side wall of the upper end cover (13) is recessed inwards along the circumferential direction to form an upper limiting groove (131) for limiting the elastic band (15).

5. An air filter according to claim 2 or 3, wherein the outer side wall of the lower end cover (14) is recessed inwards along the circumferential direction to form a lower limiting groove (141) for limiting the elastic band (15).

6. The air filter according to claim 4, wherein the outer side wall of the upper end cover (13) is arched outwards along the circumferential direction to form two upper reinforcing ribs (132), and the two upper reinforcing ribs (132) are respectively positioned at two sides of the upper limiting groove (131).

7. The air filter according to claim 5, wherein the outer side wall of the lower end cover (14) is arched outwards along the circumferential direction to form two lower ribs (142), and the two lower ribs (142) are respectively positioned at two sides of the lower limiting groove (141).

8. The air filter according to claim 7, wherein the housing (1) further comprises a connecting pipe (16), a connecting port (143) is formed in the middle of the lower end cover (14), the connecting pipe (16) is clamped in the connecting port (143), and a clamping hoop (161) is further sleeved on the outer wall of the connecting pipe (16).